IOMMU Updates for Linux v4.8 In the updates: * Big endian support and preparation for defered probing for the Exynos IOMMU driver * Simplifications in iommu-group id handling * Support for Mediatek generation one IOMMU hardware * Conversion of the AMD IOMMU driver to use the generic IOVA allocator. This driver now also benefits from the recent scalability improvements in the IOVA code. * Preparations to use generic DMA mapping code in the Rockchip IOMMU driver * Device tree adaption and conversion to use generic page-table code for the MSM IOMMU driver * An iova_to_phys optimization in the ARM-SMMU driver to greatly improve page-table teardown performance with VFIO * Various other small fixes and conversions